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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Karen Patricia Palmer, PH.D

Psychologist in Costa Mesa, CA · enumerated 2007 · practices at Arena Therapy Services, LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1841492162

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Registry record

Entity type Individual (Type 1)
Name Dr. Karen Patricia Palmer
Credential PH.D
Sex Female
Practice address Costa Mesa, CA, 92627
Phone (949) 855-2733
Fax (714) 435-8043
Enumeration date Jun 1, 2007
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PSY13770 (CA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier Type State Issuer
PSY13770 Other CA CLINICAL PSYCHOLOGIST

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Karen Palmer?
The National Provider Identifier (NPI) for Karen Palmer is 1841492162, a Type 1 (individual) record in the CMS NPPES registry.
Where does Karen Palmer practice?
The practice location on file with NPPES is in Costa Mesa, CA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.